Beauty is in the eye of the beholder, I suppose. First of all, props for adding the point of the exchange.
I just love the way he felt loved by Voldemort, like he was his "lover". And then the fact Snape thought he took advantage of Quirrel, aww! I expected he'd just been a Snapely dick, but this way they got to be together in the afterlife.
Your Quirrel was so real and awesome. Wonderful fic.